To delete your Grok chat history, go to grok.com/app or your X account and...

https://zaneznae304.lucialpiazzale.com/how-do-i-cancel-a-grok-subscription-after-deleting-my-chats

To delete your Grok chat history, go to grok.com/app or your X account and remove conversations there. Remember, deleting chats doesn’t erase files or media you created with Imagine—those need to be deleted separately